Or was it an option?

 

Nope, only the SE's had LSD from the factory. The GSL had rear disks, but they were not vented, as in the SE.

This is one reason why the GSL owners (and other models) are often looking for SE rear axles to swap out - with the corrected brake line threading for the later FB's. HTH,

 

sorry but, thats not entirely correct. All GSL and GS-SE's have a LSD. People look for the -se suspension for the larger rotors, more accessable bolt pattern, and 2 peice hub/rotors.

 

yeah i think maquire is correct....I have a GSL and i did the wheel test where one would spin one side of the wheel to the left (or right) and the non forced wheel should move in the opposite direction.

Also, Mazda Comp. tells people to start with GSL to build a super 7 series car.

 

yes
ALL GSL & GSL-SE had LSD

 

So when shopping for 1st gen's...if it has discs on the rear, it has LSD then right?

 

Yes only IF someone has swaped the 3rd member for a NON GSL .

 

Simple really:

GSL = LSD
GSL-SE = LSD
Anything else = NO LSD

 

There was something about replacing LSD's in GSL's with opens due to noise complaints from new owners of FB's.

So, the best thing to do would be to check the axel you are looking at buying.

 

The GSLs actually have one more clutch disc than the SE. The SE also has a slightly quicker gear ratio. Then there's the brake changes...

 

My buddy is looking at an RX-7 that definitely is NOT a GSL-SE...it does however have discs on the rear. The guy selling it said he was building it to make a race car, so he swapped the rear end from a GSL so he could have discs. Just wanted to see if the car has LSD.

 

Isn't it also possible to swap just the pumpkin from a GSL into a non GSL axle housing and have LSD without disc brakes?

 

i have been wanting to know this as well. because i'm happy with my drums and really just want the lsd; without the hassle. hahahaha

 

yeap!

 

SA WEEEEEET!

 

Actually, all pumpkins will interchange. I swapped in an SE axle and the new rear end was loud as hell. I went back and grabbed the taller gears and extra clutch in my GSL unit and it's nice and quiet again - pumpkin swap is easy if you just borrow a slide hammer and 4.5-5.5" hub face adapter (free at Autozone)

 

so you're saying that i could put an -SE lsd third member in my gs's???

 

keep in mind that 79-83 had smaller axles . 84-85 the axles are bigger and the driveline changed also in 84 .
Dan

 

yea, but i have an 84 gs.

 

I saw that BUT you know there is someone looking at this and has a 79/83 rx that does not know this info.

 

I have stock 1985 rx-7 gsl ,drum brakes no lds.
Wally

 

you sure it's stock? I thought all GSL had rear disks

 

I've seen at least one 7 with drum brakes badged as a GSL. *shrug* GSL Badge was up on the B-pillar, rather than on the back end.

 

Badges are cheap, saw GSL-SE badges on a 84 GS once, what a joke. The guy paid GSL-SE price for a 12a car, funniest thing I ever saw, wish I would have could have pulled that one off myself.

What makes a '84 GSL over a GS, well GSL has:
Sunroof
Cruise control
Power windows
Leather (optional)
Rear Wiper
Disc brakes
LSD
Power steering (optional)
AC

A GS could have the sunroof option and AC dealer installed.

John

 

GS (mine) came with cruise control. GSL's usually came with premium sound.